GEO

1. deep ocean mountain ridges

2. Magnetic strips

3. different ages of the seafloor

4.modern evidence from satellites

When the plates are moving away from eachother

- eurasian plate and North American plate= making the ocean bigger

Plates are just sliding past one another

-transform faults, lots of earthquakes

1. Buildings collapse

2.Debris rains down

3. Structures fall down

4. water and gas lines break

5. Landslides

6. Subsidence- settling of the ground after extraction (oil, water)

7. New topography

1. Increase in small EQs

2.  clustering of quakes in same time and space

3. nearly simultaneous quakes over a region

4. increase of ratio of small-medium EQs

>worked in the Hokkaido, Japan 8.1 EQ

1. understanding science behind EQs

2. Map faults and figure out R.I.

3. Produce Hazard maps

4. Improve Emergency response

- where all LARGE EQs happen

-biggest EQ happened in Chile in 1960, 9.5

-located in pacific northwest,

Collision Zone between ocean floor and continent

-M8.7- 9.2

-rupture 600 miles

-around portland, oregon area

-caused Tsunami in Japan

caused by a large displacement of water

-EQ

-landslide

-volcanic eruption underwater

-slows down in shallow water

(date of last disaster- First)/# of INTERVALS

cost * probability

Archean

Proterozoic

Paleozoic

Mesozoic

Cenozoic